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通过整理分析莆田砂层应变观测数据,并将其与全国7.0级以上、福建3.5级以上和台湾5.0级以上地震前的变化规律进行对比,结果表明:东西分量观测数据在上述地震前,特别是对于福建地区的地震,有多次震前日变动态出现畸变,而北南分量和平行断层分量在震前并无明显异常,结论可为今后分析该区及周边地震活动提供判定依据,并将其应用到地震预测之中,具有一定的指导意义。
By analyzing and analyzing the observed data of sandstones in Putian and comparing with those before the earthquakes above 7.0 in China, above 3.5 in Fujian and above M5.0 in Taiwan, the results show that before and after the above earthquakes, For the earthquake in Fujian Province, there are many times of diurnal variation before the earthquake, while the north-south component and the parallel fault component have no obvious anomalies before the earthquake. The conclusion can provide the basis for future seismic activity analysis in this area and its surrounding Applied to the earthquake prediction, it has some guiding significance.